IPO date
October 9, 1997
Total splits
9
Cumulative multiple
4.681
Stock splits history for TSMC (TSM) from 1998 to 2006
Cumulative multiple is the running product of split factors from the oldest row through each date.
| Type | Ratio | Pre-split | Post-split | |||
|---|---|---|---|---|---|---|
| June 20, 2006 | Stock split | 103:100 | x1.03 | x4.6812 | $8.89 | $8.34 |
| June 13, 2005 | Stock split | 21:20 | x1.05 | x4.5449 | $9.56 | $8.91 |
| June 14, 2004 | Stock split | 57:50 | x1.14 | x4.3285 | $8.94 | $7.72 |
| July 7, 2003 | Stock split | 27:25 | x1.08 | x3.7969 | $10.67 | $10.75 |
| June 19, 2002 | Stock split | 11:10 | x1.1 | x3.5156 | $14.46 | $13.05 |
| June 26, 2001 | Stock split | 7:5 | x1.4 | x3.196 | $19.23 | $13.43 |
| May 15, 2000 | Stock split | 32:25 | x1.28 | x2.2829 | $43.18 | $34.57 |
| August 16, 1999 | Stock split | 123:100 | x1.23 | x1.7835 | $34.58 | $29.76 |
| August 26, 1998 | Stock split | 29:20 | x1.45 | x1.45 | $17.23 | $11.33 |
- June 20, 2006x4.6812
- June 13, 2005x4.5449
- June 14, 2004x4.3285
- July 7, 2003x3.7969
- June 19, 2002x3.5156
- June 26, 2001x3.196
- May 15, 2000x2.2829
- August 16, 1999x1.7835
- August 26, 1998x1.45
▸▾Row notes (9)
- June 20, 2006—Final stock dividend-driven adjustment. A 3% distribution marking the end of TSMC’s era of capitalization through shares before transitioning to pure cash dividends.
- June 13, 2005—Strategic 5% stock dividend executed to capitalize retained earnings while reinvesting heavily into next-generation 90nm and 65nm process technologies.
- June 14, 2004—Growth-focused 14% share distribution reflecting the company's successful expansion of its 12-inch wafer fabrication capacity (GigaFabs) to meet global demand.
- July 7, 2003—Annual equity distribution (8%) used to reward long-term shareholders as TSMC solidified its dominant position in the global semiconductor foundry model.
- June 19, 2002—Traditional 10% stock dividend implemented following a period of technical breakthroughs in 0.13-micron manufacturing, enhancing share liquidity.
- June 26, 2001—Substantial 40% stock dividend executed despite the global tech downturn, signaling management's confidence in the long-term growth of the semiconductor sector.
- May 15, 2000—Significant 28% share distribution at the peak of the dot-com era, reflecting massive investor demand and the company’s pivotal role in the digital revolution.
- August 16, 1999—Large-scale 23% stock dividend following a record-breaking year of demand for custom integrated circuits and the expansion of the foundry ecosystem.
- August 26, 1998—Foundational 45% stock dividend, one of the largest equity distributions in TSMC’s history, aimed at broadening the shareholder base shortly after its NYSE listing.
Pre-split price is the final regular-session close on a trading day strictly before the split calendar date. Post-split price is the first session open on or after that date. Both values come from unadjusted end-of-day bars for the company's primary listing.
The Type column reflects the data feed's event category (for example stock split vs stock dividend). When the feed labels a generic split but the ratio is reverse (e.g. 1:10), we show reverse stock split. Optional editorial context for a row appears next to the split ratio as an info icon (hover or keyboard focus on desktop; tap on mobile). The same text is listed under Row notes when that block is expanded.
Wondering why some rows show ratios like 51:50 or 2000:1973? Read: stock split ratios explained → How the cumulative column is computed: cumulative split multiplier explained. For ratios driven by spin-offs, see spin-offs explained. Or read the methodology for how prices and cumulative multiples are computed.
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