Premarket Stock Movers — August 17, 2026: Why IPST, IVF, TRUG, MYSZ & SLE Are Surging

IPST — IP Strategy Holdings, Inc. (+266.0%)

IP Strategy Holdings is the most explosive premarket mover on the morning of August 17, 2026, surging +266.0% to $8.18 on 44.2 million shares before the open. To put that volume in context, IPST's 20-day average is just 23,387 shares — meaning premarket volume is running at roughly 1,890× its normal daily pace. That is an extraordinary liquidity event for a stock with a market cap of only $1.5 million. [figure:relative-volume]

Why it's moving: No specific news catalyst is on file in our data to explain this move. The only recent headline is a Zacks dividend history article from August 16, which is routine and non-market-moving. With no confirmed catalyst, this appears to be a momentum- and technically-driven spike in an extremely illiquid name. Stocks with market caps under $2 million and near-zero average volume are highly susceptible to sharp, unsustainable price swings driven by a handful of orders.

Technical picture: The daily chart through August 14 showed a three inside up candlestick pattern — a three-candle bullish reversal signal where a small candle forms inside the prior bearish candle, then a third candle closes above the first — but the broader backdrop is weak. The MA stack is bearish, RSI sits at a neutral 46, ADX reads 30 (trending but not strongly), and the stock is sitting 84.9% below its 52-week high. StockSetups assigned a conviction score of just 26/100 and a grade of D, reflecting how fragile the underlying trend is.

Short squeeze angle: The squeeze score is 29/100 — modest. Short interest is only 22,381 shares with 0.8 days to cover, so a classic short squeeze is unlikely to be the fuel here. [figure:float] The free float is 96.6%, which is relatively large for the stock's micro-cap size. With short-volume running at 57%, some traders are actively fading this move in premarket — a signal worth watching as the regular session approaches.

IVF — INVO Fertility, Inc. (+147.4%)

INVO Fertility is up +147.4% to $2.40 in premarket trading on 54.5 million shares — nearly 745× its 20-day average volume of 73,097. The Healthcare stock carries a market cap of just $2.4 million, making it another micro-cap name where even modest dollar flows can produce outsized percentage moves.

Why it's moving: INVO Fertility reported Q2 2026 earnings this morning (August 17) via Yahoo Finance, with the headline highlighting revenue growth and clinic platform profitability. That is the clear catalyst. Positive earnings surprises — especially any mention of a path to profitability — can send micro-cap healthcare names sharply higher in thin premarket trading. The 10-Q filed August 14 and a Schedule 13G/A stake-change filing are also in the recent filing history, suggesting institutional attention around the report.

Technical picture: The daily chart heading into today's move offered a weak setup: the stock was in a non-signal lane with a mixed MA stack, RSI of 39 (below neutral), ADX of just 11 (no real trend), and sitting 64.3% below its 52-week high. StockSetups rated it conviction 22/100, grade D, trend-template 3. This is a news-driven pop into a technically broken chart — not a clean breakout setup. Also worth noting: a July 24 8-K was flagged as dilution, a bearish structural signal that could weigh on the stock once the initial earnings enthusiasm fades.

Short squeeze and smart-money: The squeeze score is low at 11/100, and with only 260,114 shares short and 0.7 days to cover, short covering isn't a major amplifier here. The smart-money score is 16/100, with the largest disclosed stake at 10.0%. The earnings news is the story — but traders should be aware of the dilution overhang before assuming the move is sustainable into the regular session.

TRUG — TruGolf Holdings, Inc. (+62.2%)

TruGolf Holdings, an Industrials-sector micro-cap, is up +62.2% to $1.57 in premarket on 21.4 million shares. That's approximately 135× its 20-day average volume of 157,376 — a massive relative-volume spike for a company with a $1.4 million market cap.

Why it's moving: There are no news headlines on file for TRUG this morning. The only recent filing is a 10-Q (quarterly report) filed August 14, which is flagged as neutral. Without a confirmed catalyst, this move looks technically and momentum-driven, possibly amplified by the stock's micro-cap illiquidity. Traders scanning for the biggest premarket percentage gainers will naturally pile into names like this, creating self-reinforcing price action that can reverse just as fast. [figure:relative-volume]

Technical picture: Heading into today, TRUG's daily chart carried no recognized pattern signal (non-signal lane), a bearish MA stack, RSI of 42, ADX of 16 (weak trend), and a gap of +5.5% from the prior session. The stock is 79.8% below its 52-week high — deeply depressed technically. StockSetups scored conviction at just 8/100, grade D, trend-template 2. The RS rating of 5 out of 99 means TruGolf has been one of the weakest stocks in the entire US universe over the past year.

Short squeeze angle: With a squeeze score of 6/100, short interest of only 102,400 shares, and 0.4 days to cover, a short squeeze is not a plausible driver. Short-volume is 40%. This is the classic profile of a low-volume, low-conviction micro-cap being swept up in premarket momentum with no underlying fundamental or technical justification — exactly the kind of move that tends to fade hard once the regular session opens and liquidity improves.

MYSZ — My Size, Inc. (+35.0%)

My Size, Inc. is up +35.0% to $3.86 in premarket on 5.93 million shares — roughly 14.5× its 20-day average volume of 408,127. This is the most technically interesting name on today's list: a Technology-sector company with a genuine earnings catalyst and a chart that was already showing real strength before this morning.

Why it's moving: My Size reported Q2 2026 earnings on August 14, with Yahoo Finance highlighting 53% year-over-year revenue growth as its integrated fashion platform continues to scale. A 53% revenue growth print is a substantive fundamental catalyst for a micro-cap tech stock. The 8-K (earnings) and 10-Q were both filed August 14, confirming the results are fresh in the market. A resale prospectus (424B3) filed August 12 is a dilution flag to monitor, but it hasn't dampened the premarket enthusiasm.

Technical picture: This is where MYSZ stands apart from the other movers this morning. Heading into today's premarket spike, the daily chart already showed RSI at 82 (strongly overbought, but in a momentum context that often means strength), ADX at 52 (a strong trend reading), and the stock sitting just 15.4% below its 52-week high — far healthier than peers on this list. StockSetups scored conviction at 57/100 and grade C, with a technical rank of 99 and RS rating of 98 — meaning My Size is outperforming nearly every stock in the US universe on a relative-strength basis. Trend-template score is 5, the highest on today's list.

Short squeeze and SSR: The squeeze score is modest at 11/100, with short interest of 41,318 shares and 1.7 days to cover. Notably, the short-sale restriction (SSR) is active — this rule is triggered when a stock falls 10%+ from its prior close, and prevents short sellers from hitting the bid, which can reduce downward pressure during the trading day. The free float is 84.7%. Of all five movers today, MYSZ has the most credible combination of fundamental catalyst and technical strength — though RSI at 82 signals it is already extended.

SLE — Super League Enterprise, Inc. (+32.6%)

Super League Enterprise is up +32.6% to $2.97 in premarket on 12.9 million shares, roughly 262× its 20-day average of 49,129 shares. The Technology-sector company carries a $3.8 million market cap — the largest of today's five names, though still firmly in micro-cap territory.

Why it's moving: There are no news headlines on file for SLE this morning. Recent SEC filings include a 10-Q (August 14, neutral), an S-3/A shelf registration (August 7, neutral), and an 8-K tied to an agreement (August 4, neutral). A Schedule 13G/A stake change was filed July 29. None of these individually serve as an obvious near-term catalyst. With no confirmed catalyst, this move appears momentum- and technically-driven, with the extreme relative volume doing much of the work in thin premarket conditions.

Technical picture: The daily chart through August 14 shows a non-signal lane, a mixed MA stack, RSI of 35 (mildly oversold), and ADX of 25. The stock sits 73.7% below its 52-week high. StockSetups rated conviction at 38/100 and grade D, trend-template 2. The RS rating of 87 is respectable — suggesting SLE has held up better than most on a relative basis even as it remains deeply below its highs. Technical rank is just 6, pointing to a weak pattern structure.

Short squeeze and SSR: The squeeze score is 29/100 — the highest of today's five names alongside IPST, and the most plausible squeeze candidate given the 2.0 days to cover and 32% short-volume. The SSR is active on SLE as well, restricting short sellers from adding downward pressure during the session. The free float is 99.1% and the largest disclosed stake is 5.0%. [figure:short-interest] Still, with modest absolute short interest and no confirmed catalyst, any short-squeeze narrative should be treated skeptically — the SSR and squeeze score are conditions, not guarantees.

The bottom line

This morning's five biggest premarket gainers span a wide range of stories: two have genuine earnings catalysts (IVF, MYSZ), one has a clean technical picture backing its move (MYSZ), and two are surging with no confirmed catalyst at all (TRUG, SLE), while IPST's extreme move is entirely unexplained by available data. That distinction matters enormously for how you approach the regular session open.

Chasing extended premarket gainers is high-risk trading. Stocks up 50%, 100%, or 266% before 9:30 AM frequently see aggressive selling once the regular session opens and liquidity normalizes — a dynamic sometimes called "gap and crap" among active traders. A gap up (when a stock opens well above the prior close) [figure:gap] can just as easily become the high of the day as the launchpad for further gains. Short-sale restrictions on MYSZ and SLE reduce but do not eliminate selling pressure. Squeeze conditions and strong relative volume [figure:relative-volume] are interesting setups, not certainties — patterns and squeezes fail regularly.

Always define your risk before entering any position, size appropriately for volatility, and do your own research beyond what a premarket snapshot can provide. Nothing here is financial advice or a recommendation to buy or sell any security.

StockSetups scans the full ~12,300-stock US universe every premarket morning — detecting chart patterns, computing conviction and squeeze scores, and surfacing the names most worth watching before the open. Check back after the close for the full after-hours scan of today's regular-session movers. You can also revisit Friday's premarket recap or Thursday's top movers for context on how last week's big names played out.