Key Highlights

  • SoundHound AI (NASDAQ:SOUN) fell 2.36% to USD 5.39 in the October 9, 2026 session. Serve Robotics (NASDAQ:SERV) fell 2.25% to USD 4.35, and both traded on volume below their three-month averages.
  • BigBear.ai (NYSE:BBAI) fell 1.24% to USD 2.39 on 24.769M shares, about 1.3 times its average. Ondas (NASDAQ:ONDS) fell 1.75% to USD 6.73 on volume about 0.76 times its average, simple arithmetic.
  • Semiconductors fell more than 4% last week and the 10-year Treasury yield sits near 5.25%, which gives a plausible backdrop for pressure on artificial intelligence names, although no company-specific catalyst was identified for any of the four.
  • All four are names with high short interest positions, and SoundHound AI (NASDAQ:SOUN) has the steepest decline of the group and a 52-week high of USD 22.17 that sits far above its price.

SoundHound AI (NASDAQ:SOUN): Voice AI Well Below Its High

SoundHound AI (NASDAQ:SOUN) sells voice artificial intelligence and a conversational platform to automakers, restaurants and customer-service users. Shares fell 2.36%, or USD 0.13, to USD 5.39 in the October 9, 2026 session, the steepest decline of the four, against a 52-week high of USD 22.17 and with a market capitalization of USD 2.451B. The 52-week low could not be read and is omitted. Volume of 16.882M shares was about 0.61 times the three-month average of 27.459M, simple arithmetic on two published numbers, so selling was not heavy. No company-specific catalyst was identified for the session, and the move reflects published market data. Voice and conversational software depends on customers adopting the technology in cars, restaurants and call centers, and it competes with large technology firms that can bundle similar features. A share price roughly 75% below its yearly high shows how far expectations have reset, though that is simple arithmetic on two published numbers and not a judgment of value. Companies like SoundHound AI (NASDAQ:SOUN) often report losses while they grow, so investors look at revenue growth, cash and any share issuance.

Serve Robotics (NASDAQ:SERV): Sidewalk Robots Near a 52-Week Low

Serve Robotics (NASDAQ:SERV) operates sidewalk delivery robots, notably with Uber Eats. Shares fell 2.25%, or USD 0.10, to USD 4.35 in the October 9, 2026 session, only USD 0.18 above a 52-week low of USD 4.17 and far below the high of USD 18.64, with a market capitalization of USD 385.848M. Volume of 2.882M shares was about 0.80 times the three-month average of 3.624M, simple arithmetic on two published numbers. No company-specific catalyst was identified, and the decline reflects published market data. Delivery robots face a demanding business model: each robot costs money to build and operate, routes must be mapped, and growth depends on partners such as delivery platforms continuing to offer the service. Concentration on one partner can be a risk. A company still scaling fleets usually spends more than it earns, so cash runway and possible share sales matter, and share sales dilute existing holders. With a price this near its low, Serve Robotics (NASDAQ:SERV) would set a new 52-week low on a further drop of about 4%, which is simple arithmetic and not a prediction.

BigBear.ai (NYSE:BBAI): The Only Name With Above-Average Volume

BigBear.ai (NYSE:BBAI) sells artificial intelligence decision-intelligence software to defense and government customers and trades on the NYSE, unlike the other three. Shares fell 1.24%, or USD 0.03, to USD 2.39 in the October 9, 2026 session, the smallest decline of the group, against a 52-week high of USD 9.39 and with a market capitalization of USD 1.16B. The 52-week low could not be read and is omitted. Volume of 24.769M shares was about 1.26 times the three-month average of 19.682M, simple arithmetic on two published numbers, making it the only one of the four with above-average volume. No company-specific catalyst was identified for the session. Government customers buy through contracts that can be large but slow, and budgets, award timing and protests can delay revenue. That makes quarterly results uneven. A fall of 1.24% on above-average volume does not show whether buyers or sellers dominated, since every trade has both sides. BigBear.ai (NYSE:BBAI) is a name with a high short interest position, so changes in sentiment can be amplified by short covering, a general mechanism that published data cannot confirm here.

Ondas (NASDAQ:ONDS): Drones and Wireless Networks, the Largest of the Four

Ondas (NASDAQ:ONDS), formerly Ondas Holdings, makes autonomous drones, counter-drone systems and industrial wireless networks. Shares fell 1.75%, or USD 0.12, to USD 6.73 in the October 9, 2026 session, inside a 52-week range of USD 4.96 to USD 15.28 and with a market capitalization of USD 3.989B, the largest of the four. Volume of 60.542M shares was about 0.76 times the three-month average of 79.301M, simple arithmetic on two published numbers, and the share count traded is the highest of the group. No company-specific catalyst was identified, and the decline reflects published market data. Defense and industrial technology firms are often valued on expected contracts, so shares can swing on announcements, delays or financing. Rising interest rates reduce the present value of expected future earnings, which weighs most on companies whose profits lie years ahead, and the 10-year Treasury yield near 5.25% is high. Ondas (NASDAQ:ONDS) trades at about 1.4 times its 52-week low of USD 4.96, simple arithmetic, which puts it in a calmer position than Serve Robotics, which sits much nearer its low.

Where Things Stand

The four slipped together because buyers were scarce in the October 9, 2026 session, but no company-specific catalyst was identified for any of them. A plausible backdrop is the week in which semiconductors fell more than 4% and the 10-year Treasury yield stayed near 5.25%, since high rates pressure companies whose profits are far off. SoundHound AI fell the most at 2.36%, BigBear.ai the least at 1.24%. Serve Robotics sits closest to its 52-week low. Bank earnings begin October 13 and the CPI report arrives October 14 at 8:30 a.m. ET. None of this is a forecast.