These Teenagers Know More About Investing Than You Do
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    HOUSE MEDIAN ASKING PRICES AND WEEKLY CHANGE     Sydney $1,655,421 (-1.37%)       Melbourne $932,308 (-8.79%)       Brisbane $1,123,003 (-1.81%)       Adelaide $1,037,564 (+0.65%)       Perth $1,067,431 (-3.14%)       Hobart $841,531 (-0.24%)       Darwin $833,085 (+2.22%)       Canberra $997,488 (-1.28%)       National Capitals $1,117,351 (-1.89%)                UNIT MEDIAN ASKING PRICES AND WEEKLY CHANGE     Sydney $809,969 (-3.22%)       Melbourne $565,142 (-9.84%)       Brisbane $739,115 (-5.33%)       Adelaide $586,922 (+1.33%)       Perth $628,011 (-0.24%)       Hobart $600,183 (+4.66%)       Darwin $485,553 (-1.34%)       Canberra $494,366 (+1.35%)       National Capitals $631,659 (-2.57%)                HOUSES FOR SALE AND WEEKLY CHANGE     Sydney 15,318 (+1,415)       Melbourne 16,910 (+2,370)       Brisbane 12,398 (-503)       Adelaide 4,278 (+579)       Perth 9,664 (+855)       Hobart 813 (+96)       Darwin 197 (+12)       Canberra 1,334 (+129)       National Capitals 60,912 (+4,953)                UNITS FOR SALE AND WEEKLY CHANGE     Sydney 9,649 (-1,019)       Melbourne 6,724 (-1,041)       Brisbane 2,551 (+198)       Adelaide 669 (+230)       Perth 1,787 (+79)       Hobart 166 (+9)       Darwin 207 (-9)       Canberra 1,280 (+68)       National Capitals 23,033 (-1,485)                HOUSE MEDIAN ASKING RENTS AND WEEKLY CHANGE     Sydney $850 (-$10)       Melbourne $600 ($0)       Brisbane $720 (+$20)       Adelaide $650 ($0)       Perth $750 ($0)       Hobart $620 (-$10)       Darwin $850 (+$50)       Canberra $710 (-$10)       National Capitals $730 (+$7)                UNIT MEDIAN ASKING RENTS AND WEEKLY CHANGE     Sydney $800 (-$20)       Melbourne $610 (-$10)       Brisbane $680 (+$60)       Adelaide $540 ($0)       Perth $700 ($0)       Hobart $530 (+$23)       Darwin $680 (-$40)       Canberra $580 (-$10)       National Capitals $652 (-$2)                HOUSES FOR RENT AND WEEKLY CHANGE     Sydney 6,408 (-212)       Melbourne 7,769 (+707)       Brisbane 3,720 (+239)       Adelaide 1,232 (-47)       Perth 2,223 (+72)       Hobart 199 (-38)       Darwin 85 (+31)       Canberra 376 (-70)       National Capitals 22,012 (+682)                UNITS FOR RENT AND WEEKLY CHANGE     Sydney 9,911 (-226)       Melbourne 6,187 (+102)       Brisbane 2,194 (-1,277)       Adelaide 443 (+20)       Perth 714 (+16)       Hobart 80 (+10)       Darwin 154 (+42)       Canberra 770 (+1)       National Capitals 20,453 (-1,312)                HOUSE ANNUAL GROSS YIELDS AND TREND       Sydney 2.67% (↑)      Melbourne 3.35% (↑)      Brisbane 3.33% (↑)        Adelaide 3.26% (↓)     Perth 3.65% (↑)        Hobart 3.83% (↓)     Darwin 5.31% (↑)        Canberra 3.70% (↓)     National Capitals 3.40% (↑)             UNIT ANNUAL GROSS YIELDS AND TREND       Sydney 5.14% (↑)      Melbourne 5.61% (↑)      Brisbane 4.78% (↑)        Adelaide 4.78% (↓)     Perth 5.80% (↑)        Hobart 4.59% (↓)       Darwin 7.28% (↓)       Canberra 6.10% (↓)     National Capitals 5.36% (↑)             HOUSE RENTAL VACANCY RATES AND TREND       Sydney 1.4% (↑)      Melbourne 1.5% (↑)      Brisbane 1.2% (↑)      Adelaide 1.2% (↑)      Perth 1.0% (↑)        Hobart 0.5% (↓)       Darwin 0.7% (↓)     Canberra 1.6% (↑)      National Capitals $1.1% (↑)             UNIT RENTAL VACANCY RATES AND TREND       Sydney 1.4% (↑)      Melbourne 2.4% (↑)      Brisbane 1.5% (↑)      Adelaide 0.8% (↑)      Perth 0.9% (↑)      Hobart 1.2% (↑)        Darwin 1.4% (↓)     Canberra 2.7% (↑)      National Capitals $1.5% (↑)             AVERAGE DAYS TO SELL HOUSES AND TREND       Sydney 33.2 (↑)      Melbourne 31.7 (↑)        Brisbane 38.7 (↓)     Adelaide 31.4 (↑)        Perth 43.6 (↓)     Hobart 27.6 (↑)      Darwin 36.0 (↑)      Canberra 31.1 (↑)      National Capitals 34.2 (↑)             AVERAGE DAYS TO SELL UNITS AND TREND       Sydney 30.1 (↑)      Melbourne 29.3 (↑)      Brisbane 37.9 (↑)        Adelaide 31.6 (↓)     Perth 45.3 (↑)      Hobart 28.5 (↑)        Darwin 24.2 (↓)       Canberra 31.3 (↓)       National Capitals 32.3 (↓)           
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These Teenagers Know More About Investing Than You Do

By HANNAH MIAO
Mon, Feb 19, 2024 8:34amGrey Clock 5 min

Seventeen-year-old Sophia Castiblanco doesn’t just drive a Tesla . She also owns shares of the company .

Sophia, a high school junior in the Chicago suburbs, invests in stocks such as Tesla, Apple and Amazon.com. When she started making money as a social-media content creator three years ago, her parents encouraged her to put some of her earnings in investments likely to grow over time, rather than parking all her cash in a savings account .

She now has several thousand dollars invested in accounts set up by her father at Charles Schwab, Edward Jones and Robinhood . Last year, she saved up money to buy a new Tesla Model 3, which starts at around $40,000, through a payment plan she is splitting with her parents. On TikTok, Instagram and YouTube, she makes videos teaching her thousands of followers about investing basics.

“I’ve always had a business mindset of wanting to make money, and I’m very OK with taking risk,” Sophia said. “There’s really no minimum age to start.”

Sophia is one of many teenagers jumping into the U.S. stock market. Teens generally can’t open their own brokerage accounts until they turn 18, but adults can set up custodial accounts for minors. The accounts are turned over to the children when they reach legal age.

Custodial accounts for teens at Schwab totalled nearly 200,000 in 2022, up from about 120,000 in 2019, according to the company. They jumped above 300,000 in 2023, thanks in part to Schwab’s integration of TD Ameritrade. Other brokerages, including Vanguard, Fidelity and Morgan Stanley’s E*Trade, also reported a surge in custodial accounts in recent years.

Some teens ask their parents to open accounts—and share the login information—at brokerages such as Robinhood that don’t offer custodial accounts. At smaller financial apps such as Greenlight, teenagers are investing more money than ever before. They invested $20 million in 2023 using the Greenlight app, up from around $10 million in 2021.

A Fidelity study on teens and money recently estimated that about a quarter of teenagers in the U.S. have started investing, based on an online survey of 2,081 respondents ages 13 to 17. Trades placed using Fidelity’s Youth app, an account opened by parents but owned by teens, jumped in the fourth quarter.

Many teenagers opened up their accounts during winter break while off from school, said Kelly Lannan, a senior vice president at Fidelity.

The boom in teen trading is part of a wider rush to financial markets among Americans since the start of the Covid-19 pandemic. Stocks rocketed higher , drawing hordes of newbie investors trying to profit from the big gains.

Many of those new investors have since ditched the meme stocks that soared during that era but have remained invested, sending the share of Americans who own stocks to an all-time high.

Stocks are back at record levels, with the Dow Jones Industrial Average recently topping 38000 and the S&P 500 eclipsing 5000 for the first time. Since the start of 2020, when an unprecedented trading boom among rookie investors kicked off, the S&P 500 has soared around 55%.

“There’s just more and more awareness that the sooner you start, the better things are,” said James Martielli, head of investment and trading services at Vanguard.

Martielli said he opened custodial accounts for his three children more than a decade ago when they were toddlers. At Vanguard, there has been a jump in custodial IRAs, a type of retirement account.

The biggest advantage is time. Setting aside $10 a week for a child at birth would leave an 18-year-old with a roughly $20,000 nest egg, assuming an 8% annual return, according to the investing app Stash, which offers custodial accounts. Left until the investor turned 70, and assuming annual growth of 8%, that sum would mushroom to about $1 million.

Of course, these returns can be shaped by many factors, including when an investor buys in and how stocks end up doing. The S&P 500 has recorded a 10% annualised total return over the past three decades, according to Dow Jones Market Data through the end of 2023. Buying an S&P 500 index fund at the peak of the dot-com bubble in 2000 would generate an annualised total return of around 7%, while buying at the low of the financial crisis in 2009 would lead to a roughly 16% annualised total return.

Hot tech stocks

Brokerage executives say that technology behemoths that are ubiquitous in the lives of teens are often some of the most widely held shares. At Vanguard, U.S. stock index funds are particularly popular in custodial accounts.

Mahanth Komuravelli, 16, has a small chunk of his roughly $7,000 portfolio in an S&P 500 index fund, while most of his positions are in big companies such as Amazon and Advanced Micro Devices. He is exploring buying some small-cap stocks such as education company Chegg . Mahanth uses a Fidelity Youth Account that his father helped him open. The two often discuss investment ideas.

“Sometimes he asks me for advice,” said Mahanth, a high school junior in Edison, N.J.

Kaida Benes, a 13-year-old from the suburbs of Minneapolis, has been stashing money—earned from household chores such as doing the dishes or cleaning the bathroom—in an investment account on Greenlight that now has about $1,000 in it.

She’s also been drawn to bigger companies and has invested in tech stocks such as Apple, Alphabet and streaming companies Disney and Netflix . At times, she has been on edge about potential losses. She says her mother has helped her stomach the volatility.

“Stocks go up and down. It’s fine, it just happens,” Kaida said she’s learned.

She has been hunting for other opportunities to make money to pour into savings or investments. She recently found a recliner chair at a yard sale and enlisted her parents to help fix it up and flip it for a profit on Facebook marketplace, she and her mother, Renee Benes, said.

“I like having money,” Kaida said.

Renee Benes said she was frustrated that she didn’t learn about investing until a year or two ago, when she was well into her 30s. Benes, who’s an online influencer, wanted her daughter and son to be more financially savvy.

Lessons learned

Many young investors are starting to invest earlier than previous generations did. Almost two-thirds of Gen Z investors said they first started learning about investing in high school or middle school, compared with about 38% of millennials in a 2023 Bank of America survey of affluent individuals. Some are introduced to stocks through family members or teachers, while others have turned to social media.

Felix Peng, a 17-year-old in the Los Angeles area, said he has learned a lot about investing from YouTube and Instagram—but that some social-media stars promote riskier trading strategies that seem more like gambling. He said it is a red flag when influencers try to sell expensive trading courses that promise investors they will make a lot of money quickly.

Still, Felix believes it is beneficial for young people to learn from their mistakes when they have less money to lose. His investments in Apple, Meta Platforms and Alphabet have performed well. But when he bought shares of Teladoc around their peak and watched them tumble, he saw how tough it is to time the market. He has about $1,000 in a custodial account on Stockpile, an investing app geared toward parents and children.

“It’s a great lesson and I’m glad I learned,” Felix said.

Seventeen-year-old Rachael Kim in Orange County, Calif., traded shares of AMC Entertainment Holdings during the meme-stock era and said she made a roughly 300% profit.

“For a little while, I got addicted to that adrenaline,” Rachael said of day trading. “But as I began researching more, I realised it was highly unlikely to continue that aggressive profit.”

Rachael said she started studying investing to help her parents, who are immigrants, prepare for retirement. Now she regularly invests about half of the money she makes—from creating social-media content, working as a cashier and teaching at her church—in index funds tracking the S&P 500 and tech-heavy Nasdaq-100. She has about $10,000 in her custodial Roth IRA at Fidelity.

“Since we’re young, we have the privilege of seeing our investment compound,” Rachael said. “The biggest lesson would be to start early.”



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The AI Boom Faces Its First Serious Debt Test

Technology and semiconductor shares fell sharply as investors questioned the debt financing the AI infrastructure boom and confronted higher rates and Chinese competition.

By Ruba Jaajaa
Mon, Oct 19, 2026 4 min

A sharp technology sell-off has exposed a new anxiety on global markets: whether the enormous borrowing behind the artificial-intelligence infrastructure boom can generate sufficient returns as interest rates rise and Chinese competition intensifies.

The artificial-intelligence investment boom has powered technology shares, semiconductor manufacturers and data-centre operators to extraordinary heights. Last week, investors were given a reminder that much of this expansion is being built with borrowed money.

The technology-heavy Nasdaq Composite fell 4.5 per cent over the week ended October 16, its weakest performance since late June. Semiconductor shares suffered an even deeper correction, with the Philadelphia Semiconductor Index losing about 11.4 per cent.

The selling spread quickly through global markets. Micron Technology fell 14.6 per cent over the week, while South Korea’s Samsung Electronics and SK Hynix dropped approximately 18 per cent and 24 per cent respectively.

This was more than a routine bout of profit-taking. Investors were reassessing three interconnected risks: higher interest rates, the rapidly expanding debt burden attached to AI infrastructure and the prospect of stronger competition from Chinese memory-chip manufacturers.

The debt behind the AI build-out

Artificial intelligence requires a physical infrastructure network of enormous scale. Data centres must be built, advanced processors purchased, power supplies secured and cooling systems installed before customers begin generating meaningful revenue from them.

Technology companies are increasingly supplementing their own cash with corporate bonds, syndicated loans, equipment leases, private credit and project-level financing.

JPMorgan describes the emerging funding model as a combination of conventional corporate borrowing and project finance tied to individual data-centre assets. In Australia, the Reserve Bank estimates that syndicated loans accounted for approximately three-quarters of data-centre financing during 2025 and 2026 to date.

The numbers are becoming large enough to affect broader credit markets. The Federal Reserve Bank of Dallas has cited Wall Street estimates suggesting AI-related investment-grade bond issuance could approach US$300 billion in 2026 alone.

That borrowing is not automatically problematic. Debt can be an efficient way to finance long-lived infrastructure when future revenue is sufficiently predictable. The concern is that AI technology, customer demand and computing economics are changing much faster than the repayment schedules attached to the assets.

A data centre financed today may carry debt for years. Investors must therefore make assumptions about future utilisation rates, electricity prices, chip performance, customer concentration and the amount businesses will ultimately pay for AI computing.

When interest rates rise, those assumptions become less forgiving.

Inflation changes the calculation

September’s US inflation data intensified the pressure. Consumer prices increased 3.7 per cent over the year, ahead of market expectations and up from 3.4 per cent in August.

The hotter reading reduced confidence that interest rates would fall quickly and pushed bond yields higher. That matters particularly for companies whose valuations depend on profits expected well into the future, as well as highly leveraged infrastructure operators that may need to refinance.

CoreWeave has emerged as a closely watched test case. The specialist cloud-computing company has accumulated substantial debt and lease obligations to build AI capacity, while relying on a concentrated group of large technology customers.

Its shares fell sharply during the sell-off, while the cost of insuring its debt against default climbed. CoreWeave has argued that its contracted backlog more than covers its obligations and that financial markets do not always understand its business model. Nevertheless, its securities have become a proxy for investor confidence in debt-funded AI infrastructure.

Oracle, another major investor in AI computing capacity, fell 8.8 per cent in Friday trading, while CoreWeave dropped 15.5 per cent.

The question is shifting from how much AI infrastructure can be built to how profitably it can be operated.

China adds another source of pressure

Interest rates were not the only catalyst. Reports of advances by Chinese memory-chip producer ChangXin Memory Technologies raised concerns that lower-cost Chinese products could increase competition across the global semiconductor industry.

Memory chips are essential to AI systems, but the industry is historically cyclical. Periods of tight supply and high pricing can encourage rapid investment, eventually producing oversupply and falling margins.

The prospect of a well-funded Chinese competitor expanding its technological capabilities unsettled investors in Samsung, SK Hynix and Micron. It also demonstrated that AI-related demand does not insulate chipmakers from conventional competitive pressures.

That combination—slower rate cuts, more expensive financing and potentially cheaper supply—challenged the assumption that every company exposed to AI would enjoy continually expanding margins.

A reset rather than the end of the boom

The sell-off does not establish that the AI boom is ending. Demand for computing power remains strong, the largest technology companies continue to generate formidable cash flows and many infrastructure projects are backed by long-term customer contracts.

What has changed is the market’s willingness to overlook the price and financing structure of that growth.

The most resilient companies are likely to be those able to fund investment from operating cash flow, secure long-duration customers and demonstrate that new capacity will earn returns comfortably above its financing costs.

More speculative operators may face greater scrutiny, particularly where debt is expensive, customers are concentrated or expected revenue depends on demand that has not yet materialised.

For Australian investors, the lesson extends beyond US technology shares. Local data-centre operators, infrastructure funds, electricity suppliers and property groups are increasingly exposed to the same investment cycle.

Artificial intelligence may remain one of the defining growth themes of the decade. But last week’s correction showed that enthusiasm for the technology does not eliminate financial discipline.

The next stage of the AI boom will be judged not only by computing power, model performance or demand for chips, but by something more traditional: whether the assets being financed can generate enough cash to repay the money borrowed to build them.

Fact box

Nasdaq Composite: Down 4.5 per cent for the week ended October 16, 2026

Philadelphia Semiconductor Index: Down approximately 11.4 per cent

Micron Technology: Down approximately 14.6 per cent

Samsung Electronics: Down approximately 18 per cent

SK Hynix: Down approximately 24 per cent

US September inflation: 3.7 per cent annually

Estimated 2026 AI-related investment-grade issuance: Approximately US$300 billion

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