Contrarian Reports
What if you had bought it then, against the crowd or in a way nobody bothers to try? Each report sets up one hypothesis, applies actual past prices to it, and shows what the money became. Whether the hypothesis held or fell apart is the conclusion.
- Hypothesis held-71.2%New reportWhat if you only bought stocks that just issued new shares?An account that bought and sold 30 stocks with increased share counts every 4 weeks fell from 10M won to 2.88M won in 5 years and 3 months. An account that bought the whole market the same way on the same dates ended at 7.67M won.
Published 2026-09-30 00:41 KSTPublished 14 days agoPeriod 2021-06-03 ~ 2026-08-27
- Hypothesis held-0.2%New reportWhen short selling was banned, did piles of borrowed shares still matter?During the 73-week short selling ban, the weekly gap between the 30 stocks with the largest increases in borrowed shares and the market was +0.06%p, effectively no difference. In the 206 weeks when short selling was allowed, stocks selected by the same rule lagged by 0.24%p per week.
Published 2026-09-30 00:40 KSTPublished 14 days agoPeriod 2023-11-09 ~ 2025-04-03
- Half right+100.9%New reportAfter short selling resumed, what if you bought the stocks being covered the most?For 76 weeks after short selling resumed, a portfolio bought the 30 stocks with the largest declines in stock lending balance each week. Its 10M won grew to 20.09M won. In 2021-2023, the same rule would have left 7.05M won, below the benchmark portfolio's 7.89M won.
Published 2026-09-30 00:39 KSTPublished 14 days agoPeriod 2025-04-03 ~ 2026-09-17
- Half right+29.1%Did buying the KOSPI at every new thousand-point mark leave you stuck at the top?The four accounts opened at the 3,000 through 6,000 crossings are in profit, and the three opened at 7,000 through 9,000 are at a loss. All seven together are up 29.1%.
Published 2026-09-13 23:21 KSTPublished 31 days agoPeriod 2021-01-07 ~ 2026-09-11
- Hypothesis rejected+38.4%What if you had bought last year's worst performer on the first trading day of this year?The account holding last year's worst performer gained 38.4% in eight months. Over the same stretch the account holding last year's best gained 143.3%, and the KOSPI rose 55.2%.
Published 2026-09-06 08:30 KSTPublished 38 days agoPeriod 2026-01-02 ~ 2026-09-04
- Hypothesis rejected+165.7%What if you had put 10 million won into the Nasdaq instead of the Korean index five years ago?KODEX 200 turned into 26.57 million won and TIGER US Nasdaq 100 into 22.35 million. The Nasdaq side led for four and a half years, then fell 4.22 million won behind in the final seven months.
Published 2026-08-27 19:20 KSTPublished 48 days agoPeriod 2021-08-27 ~ 2026-08-27
- Half right+37.5%What if you had skipped one fried chicken a week and bought NVIDIA for 2 years?105 chickens' worth of money, $2,100, became $2,887. A +37.5% return is excellent; $787 in absolute terms is awkward. The hypothesis was half right.
Published 2026-08-22 18:25 KSTPublished 53 days agoPeriod 2024-08-23 ~ 2026-08-21
- Hypothesis rejected+1,385.0%What if you had bought SK hynix, the industry number two, instead of Samsung Electronics three years ago?10M won became 42.27M won in Samsung Electronics and 148.5M won in SK hynix. What decided these three years was not the ranking but what each company sells.
Published 2026-08-22 18:15 KSTPublished 53 days agoPeriod 2023-08-22 ~ 2026-08-21
- Hypothesis rejected+252.9%What if you had bought 300,000 won of Samsung Electronics every payday for 3 years?Monthly buying turned 10.8M won into 38.12M won, but putting it all in on day one would have made 45.31M won. Spreading out the timing cost 7.19M won in a market that kept climbing.
Published 2026-08-22 18:05 KSTPublished 53 days agoPeriod 2023-08-25 ~ 2026-08-21
These are hypothetical results computed from past prices. A real trade would differ with fees, taxes, lot sizes and execution timing, and past returns say nothing about future returns. This is not a solicitation to buy or sell any security.