Option Focus | Taiwan Semiconductor's $14.7 Million Short Put Sale at $400 Strike Signals Bullish Confidence Amid Premium Collection

Option Witch
Jul 16

Taiwan Semiconductor Manufacturing Company Ltd. closed at $419.48, dipping 0.22%. Large options trades on the day were dominated by a significant short put position, signaling bullish conviction through premium collection on the expectation of underlying stability or strength.

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Options Indicators

TSM’s implied volatility stands at 56.72%, and with an IV percentile of 93.63%, current option volatility is clearly in an elevated regime, indicating that options are priced expensively relative to their own recent history.

At the same time, the IV/HV ratio of 0.96 suggests implied volatility is roughly in line with, and slightly below, realized volatility, so while premiums are rich on a historical percentile basis, they are not dramatically overstated versus actual underlying movement.

The Call/Put volume ratio is 0.88.

Large Trades

A PUT sale worth $14.70 million was the largest displayed trade of the day, with 3,000 contracts sold at the 400.0 strike expiring on 2027-02-19.

With TSM referenced at $419.48, this put was out of the money at execution, making the trade a moderately bullish short-put position.

Strategically, the seller is collecting premium while expressing confidence that the stock will stay above $400.0 through expiration, or at least remain firm enough that the option expires worthless.

This type of trade typically reflects a willingness to accumulate shares at a lower effective entry level if assigned, while monetizing a constructive outlook in the meantime.

A CALL sale worth $8.27 million was the second major displayed trade, involving 3,050 contracts sold at the 670.0 strike expiring on 2027-06-17.

Since the current stock reference of $419.48 is well below the strike, the call was deeply out of the money, so the trade represents a bearish-to-neutral premium-selling stance rather than an outright downside bet.

The strategic intent is premium collection, with the seller effectively expressing the view that TSM is unlikely to rally anywhere near $670.0 by expiration.

While not aggressively bearish in the near term, this large call overwrite signals skepticism toward extreme upside over the long-dated horizon.

Overall sentiment in TSM large trades was clearly bullish, with total bullish flow of $28.29 million versus bearish flow of $8.39 million, leaving a net bullish difference of $19.90 million.

The directional takeaway is decisively constructive, as the dominant money was concentrated in sold out-of-the-money puts, a structure commonly associated with confidence in downside support and a willingness to earn premium on a stable-to-rising stock.

Although there was a sizable out-of-the-money call sale that capped some long-term upside expectations, the broader large-trade profile still points to investors leaning bullish on TSM rather than positioning for material weakness.

Strategy Reference

For premium sellers seeking low assignment probability, a short put at a strike like $300.0, well below the current price, could be considered, while a bull put spread using the $400.0 and $380.0 strikes would define risk and reduce margin requirements for those with a moderately bullish view.

Disclaimer: Investing carries risk. This is not financial advice. The above content should not be regarded as an offer, recommendation, or solicitation on acquiring or disposing of any financial products, any associated discussions, comments, or posts by author or other users should not be considered as such either. It is solely for general information purpose only, which does not consider your own investment objectives, financial situations or needs. TTM assumes no responsibility or warranty for the accuracy and completeness of the information, investors should do their own research and may seek professional advice before investing.

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