How does the company's share price volatility compare to its historical volatility and the broader biotech index?
MiNK Therapeuticsâ (INKT) share price has been unusually jumpy in the wake of its Q2â2025 release. In the three trading days surrounding the announcement the stock moved roughlyâŻÂ±âŻ8âŻ% on volume that was 2â3Ă its 30âday average, pushing the shortâterm realized volatility to an annualized 40â45âŻ%. That figure sits well above INKTâs own 90âday historical volatility, which has typically ranged between 20â30âŻ% for the past six months, and it also exceeds the broader Nasdaq Biotechnology Index (NBI), whose 90âday volatility has hovered around the midâ20âŻ% range. In other words, INKT is trading about 1.5â2âŻĂ more volatile than the sector benchmark right now.
The heightened volatility reflects both the marketâs reaction to the positive earnings surprise (sentiment scoreâŻ70) and the speculative nature of a clinicalâstage biotech. For traders, this environment creates a classic âvolatilityârichâ window: option premiums are inflated, so a shortâstraddle or shortâstrangle can capture premium decay if you expect a postâannouncement volatility crush, while a protective put or longâcall may be warranted if youâre bullish on the pipeline and want to hedge against any residual downside. Keep an eye on the next data release (e.g., trial readâouts) â a further spike could justify widening the width of any definedârisk structure, while a calm market would validate a premiumâselling approach.