αTheAlphaInsider

Lu Chin-Sheng

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
TSM2026-08-0711d39$3K
TSM2026-07-0711d37$3K
TSM2026-06-0511d37$3K

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(VP)39$73.31$3K
2026-07-07TSMOfficer(VP)37$76.62$3K
2026-06-05TSMOfficer(VP)37$76.01$3K