FAQ
Data-backed answers to common investor questions
Q: Does following foreign institutional buying make money?
No. We tested 12,437 consecutive foreign buying events. p > 0.3, not statistically significant. Foreign institutions are contrarian — they buy weakness, not strength.
Q: Are retail investors really "dumb money"?
Statistically, yes. When retail panic-sells (>1σ below mean), stocks gain +0.91% over 20 days. 4,209 events, p < 0.0001. Retail panic is the most reliable contrarian indicator.
Q: Is rising shareholder count bullish?
Danger signal. Stocks with +5% holder growth and declining big-holder % underperform by -0.87% over 20 days. 396 events. Institutions are distributing to retail.
Q: Why do stocks fall on revenue beats?
Sell the news. Stocks beating revenue expectations by >10% FALL -1.95% over 20 days. Institutions have already priced it in before release.
Q: SITC vs Foreign — who's smarter?
SITC wins on mid-caps. When they disagree, following SITC yields +0.25% vs +0.04% for foreign. SITC has local information edge.
Q: Does money flow along supply chains?
Yes, with 1-day lag. When TSMC gets foreign buying, MediaTek correlation = 0.18 next day. Money propagates along supply chains.
Q: Is 0050 ETF safe to buy now?
Caution. Last 20 days: retail net +392M shares, foreign net -296M. This divergence (retail FOMO + foreign dumping) is historically a top signal.
Q: Why does Monday tend to drop?
Foreign sells most on Mondays. Average -76,451 shares/stock. Digesting weekend global risk. Wednesday bounce (+23,059).