αTheAlphaInsider

Lee Chun-Hsien

Outside the top-25 by R-coefficient, but with purchase history.

R-coefficient
skill with Bayesian shrinkage
60d win rate
% of purchases with positive return
Avg 60d return
after their purchases

🧱 Conviction tranches

Repeated purchases of the same stock within ≤5 days — an accumulation pattern.

TickerDateTradesSpanSharesAmount
TSM2026-08-0711d54$4K
TSM2026-07-0711d50$4K
TSM2026-06-0511d51$4K
TSM2026-05-0811d53$4K
TSM2026-04-0911d63$4K

Purchase history

Later sales by the same insider on the same ticker — realized gain vs average buy price. Empty = position still held.

DateTickerRoleSharesAvg priceAmountSalesAvg sell priceGain %
2026-08-07TSMOfficer(SVP)54$73.31$4K
2026-07-07TSMOfficer(SVP)50$76.62$4K
2026-06-05TSMOfficer(SVP)51$76.01$4K
2026-05-08TSMOfficer(VP)53$71.82$4K
2026-04-09TSMOfficer(VP)63$57.87$4K