αTheAlphaInsider

Lin Shyue-Shyh

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
TSM2026-08-0711d47$3K
TSM2026-07-19 → 2026-07-2133d5000$362K
TSM2026-07-0711d44$3K
TSM2026-06-0511d46$3K
TSM2026-05-0811d48$3K
TSM2026-04-0911d58$3K
TSM2026-03-29 → 2026-03-3022d5000$275K

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)47$73.31$3K
2026-07-21TSMOfficer(VP)1000$74.13$74K
2026-07-20TSMOfficer(VP)1000$72.65$73K
2026-07-19TSMOfficer(VP)3000$71.79$215K0
2026-07-07TSMOfficer(VP)44$76.62$3K
2026-06-05TSMOfficer(VP)46$76.01$3K
2026-05-08TSMOfficer(VP)48$71.82$3K
2026-04-09TSMOfficer(VP)58$57.87$3K
2026-03-30TSMOfficer(VP)3000$54.72$164K
2026-03-29TSMOfficer(VP)2000$55.63$111K