Market Movers | Winners: AUUD, BWMN, XHLD | Losers: SION, TENX, ACH
A day of quiet indices saw extreme moves in individual names, raising questions about the nature of market momentum.
Sionna Therapeutics (SION) closed the day with a return of -91.2%, an extreme move on a day when the major indices were nearly flat. The S&P 500 returned -0.1%, the Dow Jones Industrial Average returned -0.1%, and the Nasdaq-100 returned -0.3%. The contrast raises a critical question for any investor looking at a list of top movers: is this a sudden event or a developing story?
Monday’s Market Winners
The 9 stocks with the highest returns on the last trading day:
| # | Ticker | Company Name | 1-D Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | AUUD | Auddia | 60.5% | -82.3% |
| 2 | BWMN | Bowman Consulting | 55.8% | 28.5% |
| 3 | XHLD | TEN | 54.0% | 163.6% |
| 4 | VREX | Varex Imaging | 48.8% | 58.5% |
| 5 | HZO | MarineMax | 46.1% | 115.1% |
| 6 | ALGS | Aligos Therapeutics | 36.9% | -17.9% |
| 7 | STDN | Standard Nuclear | 35.7% | n/a |
| 8 | ABCL | AbCellera Biologics | 34.8% | 173.1% |
| 9 | ARTW | Art’s-Way Manufacturing | 30.8% | 22.1% |
Monday’s Market Losers
And the 9 stocks with the lowest returns:
| # | Ticker | Company Name | 1-D Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | SION | Sionna Therapeutics | -91.2% | -89.1% |
| 2 | TENX | Tenax Therapeutics | -89.8% | -88.7% |
| 3 | ACH | Accendra Health | -50.0% | -50.0% |
| 4 | AIRS | AirSculpt Technologies | -45.1% | 38.9% |
| 5 | VATE | Innovate | -41.1% | 57.7% |
| 6 | QTRX | Quanterix | -40.0% | -61.9% |
| 7 | TOPP | Toppoint | -38.5% | -65.4% |
| 8 | NABL | N-able | -35.7% | -57.1% |
| 9 | HRTX | Heron Therapeutics | -31.7% | -74.2% |
Is this a sudden shock or a building trend?
The data shows that two stocks can arrive on the same losers list through very different paths. Sionna Therapeutics (SION) appears on both the one-day and one-month lists, but its one-month return of -90.1% shows that essentially the entire monthly decline came from this single session. Tenax Therapeutics (TENX) also appears on both lists, with a one-month return of -92.2%. For Tenax, however, its weakness has been building for weeks; it still lost 23.4% over the other sessions this month.
Movers Over The Last Week
Widening the window to five trading days, these are the strongest and weakest Market names:
| # | Ticker | Company Name | 1-W Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | XHLD | TEN | 245.7% | 163.6% |
| 2 | AMIX | Autonomix Medical | 154.5% | -19.6% |
| 3 | CLRO | ClearOne | 114.3% | 76.4% |
| 4 | OESX | Orion Energy Systems | 87.0% | 24.5% |
| 5 | CELZ | Creative Medical Technology | 83.4% | -38.8% |
| 6 | OABI | OmniAb | 73.0% | 83.2% |
| 7 | ALGS | Aligos Therapeutics | 66.3% | -17.9% |
| # | Ticker | Company Name | 1-W Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | SION | Sionna Therapeutics | -90.9% | -89.1% |
| 2 | TENX | Tenax Therapeutics | -90.4% | -88.7% |
| 3 | ACH | Accendra Health | -58.9% | -50.0% |
| 4 | CVRX | CVRx | -56.9% | -66.6% |
| 5 | GYGY | Game Your Game | -51.9% | n/a |
| 6 | AHCO | AdaptHealth | -51.8% | -47.6% |
| 7 | THRY | Thryv | -49.4% | -64.4% |
| 8 | TDUP | ThredUp | -48.0% | -49.5% |
Movers Over The Last Month
And over the last 21 trading days:
| # | Ticker | Company Name | 1-M Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | SHOT | RMG ML Sports | 699.1% | 281.0% |
| # | Ticker | Company Name | 1-M Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | YYAI | Airwa | -99.0% | -99.7% |
| 2 | TENX | Tenax Therapeutics | -92.2% | -88.7% |
| 3 | SION | Sionna Therapeutics | -90.1% | -89.1% |
| 4 | LESL | Leslies | -82.2% | -32.7% |
| 5 | CAPR | Capricor Therapeutics | -82.1% | -86.7% |
| 6 | MBRX | Moleculin Biotech | -81.1% | -87.0% |
| 7 | KPTI | Karyopharm Therapeutics | -81.0% | -73.4% |
A big move is a starting point, not a conclusion.
The leaderboards earlier in this report are best used as a map of attention and risk, never as a set of instructions. A disciplined reader sees a name on the list and begins their work, not ends it. The day’s top gainer, Auddia (AUUD), returned +60.5%. A check of the fundamentals reveals its market value is about $77 thousand. That context is essential. The move itself is just the first piece of information, signaling that it is time to look deeper into the business behind the ticker.
Either side of these lists can be a lead worth following, with the same follow-up question: does the business back the move? For the winners, our Guidance Momentum screen tracks which companies raised their own forward numbers. For the losers, our Buy the Dip screen flags which marked-down names still have the fundamentals to recover.
Volatility Is The Cost Of Owning Stocks. Concentration Makes It A Bill
Every name on these lists moved this much in a single day. A diversified holder reads that as noise; a concentrated holder feels it as real money. The difference is not the stock, it is the portfolio around it.
Building that portfolio is what the Trefis High Quality (HQ) Portfolio does: roughly 30 businesses with the cash generation and balance-sheet strength to absorb bad days, selected and rebalanced by rules. It has a track record of outpacing a benchmark that combines the three major indices – the S&P 500, S&P Mid-cap, and Russell 2000. Let the movers list remind you why diversification exists.