Short Interest in Spok Holdings Rises 30.4%

Hedge funds and institutional investors increase short positions in the wireless communications provider.

Published on Feb. 20, 2026

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Spok Holdings, Inc. (NASDAQ:SPOK) saw a significant increase in short interest during January, with the number of shares sold short rising 30.4% to 428,096. This represents approximately 2.2% of the company's outstanding shares. The increase in short interest comes as hedge funds and other institutional investors have recently made changes to their positions in the wireless communications provider.

Why it matters

The rise in short interest suggests that some investors are betting against Spok's stock performance. This could indicate concerns about the company's outlook or potential challenges it may be facing. The short interest ratio of 2.6 days also implies that traders are actively trading the stock.

The details

As of January 30th, Spok had short interest totaling 428,096 shares, up from 328,368 shares on January 15th. The increase represents a 30.4% jump in the number of shares sold short. Approximately 2.2% of Spok's outstanding shares are currently sold short.

  • As of January 30th, 2026, Spok had short interest totaling 428,096 shares.
  • On January 15th, 2026, Spok had short interest totaling 328,368 shares.

The players

Spok Holdings, Inc.

A publicly traded healthcare communications and collaboration company headquartered in Bellevue, Washington. Spok specializes in providing secure, real-time clinical communication solutions for hospitals, health systems, and other healthcare organizations.

Parallel Advisors LLC

A hedge fund that lifted its stake in Spok by 305.4% during the third quarter.

CANADA LIFE ASSURANCE Co

An institutional investor that grew its position in Spok by 69.8% during the fourth quarter.

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The takeaway

The significant increase in short interest in Spok Holdings suggests that some investors are bearish on the company's prospects, which could be a sign of potential challenges or concerns about the wireless communications provider's outlook.