TSM Drops 4.48% as CEO Flags Prolonged AI Chip Shortage: RSI Holds 52 With SMA-50 Support in Focus
Taiwan Semiconductor Manufacturing's CEO reportedly stated the AI chip shortage isn't ending anytime soon — a headline that appeared in premarket trading on Thursday per a Stocktwits report timestamped 12:21 GMT. TSM opened at $413.955, below the prior close of $427.92, and continued lower through the session, shedding 4.48% to close at $408.75. The stock reversed sharply from an intraday high of $426.32 and finished just above the session low of $407.70 on volume of approximately 13.14 million shares, modestly above the 20-day average of 12.78 million. The full-day decline reflects a combination of factors across the session, with the premarket CEO commentary representing one element of the day's news flow.
How the AI Chip Shortage Headline and Political Headwinds Are Reading in TSM's Chart
The fundamental backdrop for TSM is split. On one side, Investor's Business Daily reported May sales growth of 30%, keeping the company on target for what analysts have characterized as a strong revenue trajectory. The AI manufacturing angle — TSM's dominant position in advanced node production — continues to attract attention, including placement in prominent investor portfolios such as that of billionaire Ken Fisher, per Benzinga.
On the other side, the CEO's commentary on a prolonged chip shortage introduces a supply-side overhang that cuts both ways: demand is robust, but TSMC's ability to fully capitalize on it remains constrained by capacity. The premarket headline was published by Stocktwits, though the original source of the CEO's remarks may be a separate outlet or event. Compounding that, Axios reported that Republican lawmakers are actively challenging TSMC's Washington influence, adding a geopolitical friction layer. These competing forces — strong revenue execution against supply constraints and regulatory scrutiny — map directly onto the mixed price action of the past five sessions.
Why TSM's 2.89% 20-Day Return Is Now Testing the SMA-20 From Below
TSM's trend structure has deteriorated in the current session. The stock is now trading at $408.75, sitting 2.03% below its 20-day simple moving average of $417.23. The SMA-20 has moved from a level below the prior close to overhead resistance following Thursday's decline.
The SMA-50 at $394.91 remains below the current price, with TSM trading 3.5% above that level — preserving the intermediate-term structure for now. The EMA-12 at $422.51 and EMA-26 at $413.39 are both above the current price, indicating that short-term momentum has turned negative across multiple timeframes. The 20-day return of 2.89% illustrates how quickly prior gains have been compressed by the last five sessions' -6.4% drawdown.
RSI at 52.49: Mid-Range Reading After a 4.48% Single-Session Drop
The 14-period RSI at 52.49 is sitting in neutral territory — neither overbought nor oversold. After Thursday's 4.48% single-session decline, that reading reflects a momentum structure that has cooled from levels preceding the recent five-day slide of 6.4%, without yet reaching the oversold zone below 30.
The historical move data adds context: TSM's average daily move over the measured period is 2.15%, meaning Thursday's 4.48% decline is more than double the typical daily range. The maximum daily loss in the dataset is -6.69%, so Thursday's move is within the observed distribution. The stock has closed positive 56.7% of days in the sample, and the maximum daily gain on record is 6.78%. The RSI at 52.49 does not indicate an extreme reading in either direction — it reflects a stock that absorbed a significant single-day decline without yet entering technically oversold territory.
TSM's 42.31% Annualized Volatility: Sizing the Daily Risk After Thursday's Reversal
TSM carries a 30-day annualized volatility reading of 42.31% — a figure that places it in the high-volatility category for a large-cap equity. At an average daily move of 2.15%, the realized daily range is substantial, and Thursday's session reinforced that: the stock opened at $413.955 versus the prior close of $427.92 before extending to an intraday high of $426.32, then reversing to a low of $407.70. The spread from high to low represents an 18.62-point range, or roughly 4.5% of the stock's value within a single session.
The options market is pricing in considerable uncertainty. The mean implied volatility across all contracts sits at 138.45%, with a median of 81.82%. The substantial gap between mean and median is characteristic of options datasets where very short-dated or deep out-of-the-money contracts carry extreme IV readings that pull the mean sharply higher — making the median a more representative measure of typical contract pricing. Mean call IV at 141.53% runs above mean put IV at 132.96%, producing a negative IV skew of -8.57. That configuration — calls carrying higher implied volatility than puts — is atypical and reflects elevated demand for upside optionality even against a backdrop of recent selling pressure.
TSM's $446.69 Range High and $392.61 Range Low: The Levels Visible in the Data
The 20-day high of $446.69 marks the top of the recent range and sits 9.3% above Thursday's close of $408.75. The 20-day low of $392.61 is the structural floor from the same window, sitting $16.14, or approximately 4%, below the current price.
The SMA-50 at $394.91 clusters tightly with the 20-day low, creating a zone between $392.61 and $394.91 that represents a confluence of technical reference levels visible in the data. A close below that zone would place TSM beneath both its 20-day range floor and its 50-day moving average simultaneously.
On the options side, call OI is most heavily concentrated at the $370 strike with 35,182 contracts, followed by the $400 strike with 16,786 contracts and the $380 strike with 13,020 contracts. Put OI is heaviest at the $400 strike with 23,628 contracts and the $395 strike with 15,488 contracts. The put/call OI ratio of 1.48 — with total put OI of 360,337 against total call OI of 244,276 — reflects a skew toward downside positioning in the options market.
What to Watch in the Next Session
The $407.70 session low is the immediate downside reference visible in Thursday's data. The SMA-20 at $417.23 is the first overhead level TSM would need to reclaim to stabilize the short-term trend structure. Taken together, the proximity of the SMA-50 ($394.91) to the 20-day range low ($392.61), a put/call OI ratio of 1.48, and an RSI of 52.49 that remains well above oversold territory describe the current technical setup heading into Friday. With the CEO's AI chip shortage commentary still in the news cycle and Republican scrutiny of TSMC's Washington influence unresolved per Axios, the fundamental narrative remains unsettled. No scheduled earnings or macro events are reflected in the current source data.
All data sourced from polygon.io. This article is for informational purposes only and does not constitute financial advice.