Tzu Sheng Ku is Director & 10% Owner at TAITRON COMPONENTS INC (TAIT). They have made 68 open-market trades across 2 companies since 2008, most recently 2023-10-09.
CIK 0000942126
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
68 open-market purchases totalling $377K since 2008, never a sale. Across 67 scored buys the stock is down 0.2% at ninety days, and 0.6 points behind the S&P over the same stretch.
67 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 99% | 0% | 0% |
| Avg Move | +3.1% | -0.1% | -0.2% |
| Alpha | +8.8% | -0.2% | -0.6% |
| Scored | 67 | 67 | 67 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| TAIT | BUY | 2015-12-09 | 2016-01-06 | $0.97 | $19K | -0.8% | -4.8% | -7.8% |
| TAIT | BUY | 2015-10-09 | 2016-01-05 | $0.99 | $18K | +4.1% | -0.9% | -4.0% |
| TAIT | BUY | 2015-08-06 | 2015-10-01 | $0.99 | $37K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2015-07-20 | 2015-08-03 | $0.99 | $5K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2015-05-01 | 2015-06-25 | $0.99 | $10K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2015-04-24 | 2015-04-28 | $0.99 | $1K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2015-04-21 | 2015-04-28 | $1.00 | $6K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2015-03-25 | 2015-04-06 | $0.99 | $9K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2014-06-27 | 2015-04-06 | $1.00 | $5K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2014-06-16 | 2014-06-24 | $0.97 | $11K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2014-05-12 | 2014-06-03 | $0.99 | $2K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2014-04-14 | 2014-04-29 | $0.97 | $3K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2014-04-07 | 2014-04-09 | $0.99 | $8K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2013-08-20 | 2013-09-24 | $1.00 | $600 | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2013-07-08 | 2013-07-31 | $1.00 | $9K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2013-06-10 | 2013-06-28 | $0.96 | $4K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2013-03-06 | 2013-05-16 | $1.00 | $4K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2013-01-31 | 2013-02-22 | $1.02 | $4K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2012-12-04 | 2012-12-28 | $1.00 | $6K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2012-11-26 | 2012-12-28 | $1.00 | $2K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2012-11-14 | 2012-11-19 | $1.01 | $5K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2012-10-17 | 2012-11-14 | $1.01 | $14K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2012-09-21 | 2012-10-17 | $0.92 | $4K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2012-08-15 | 2012-08-24 | $0.92 | $5K | +3.1% | +0.0% | +0.0% |
| TAIT | BUY | 2012-07-23 | 2012-07-30 | $0.94 | $10K | +3.1% | +0.0% | +0.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.