The shares of Texas Instruments are fractionally lower this morning after the chipmaker announced it acquired Powerprecise Solutions, a battery and power-management firm. No financial terms have yet been disclosed.

From a technical standpoint, TXN has reentered uptrend mode after slipping lower with the broad-market decline that hit in mid-summer. The equity is using support from its 10-day and 20-day moving averages to help it re-attain its pre-slump highs. TXN has also crested back above its 20-week trendline, the site of former resistance during August and the first half of September.

TXN remains a favorite of option investors its Schaeffer's put/call open interest ratio (SOIR) checks in at 0.48, lower than 78% of other such readings taken during the past year. However, short-sellers may be trying to call a top to the stock's rally. Short interest increased by more than 25% during the most recent reporting period, pushing TXN's short-interest ratio to 1.8 days to cover.