STRK rises 21% after Nostra protocol hack
Starknet (STRK)
Editor:
Eugene Serbin
tradersunion.com reports that Starknet (STRK) surged 20.86% to $0.0336 following a $3.5 million exploit on the Starknet-based DeFi protocol Nostra. The incident allowed a user to siphon funds by manipulating oracle prices, prompting Nostra to review its collateral and oracle systems. This event impacted STRK and its derivatives, even though Nostra had recently integrated Chainlink Price Feeds for the token.
Technical analysis shows STRK trading above its 20-day, 50-day, and 200-day moving averages, indicating broad-based buying interest. The 20-day average is at $0.0282, the 50-day at $0.0262, and the 200-day at $0.0336. Immediate resistance is identified at $0.0376, with the Ichimoku Kijun line at $0.0293 acting as support.
Momentum indicators like MACD and ADX point to buying strength, while the RSI sits at 52.34, signaling neutral-to-bullish conditions. Bull/Bear Power shows buyers are in control, and the pair is up $0.0058 for the day. Volatility is measured at 8.68%, with price action remaining firm near intraday highs. Analysts note this surge marks a shift from earlier sustained bearish pressure, with $0.0376 serving as the key level for trend confirmation.
How the market reacted
Whalio's own Binance spot order flow for STRK, measured when this story was written up on 18 September 2026. Not the outlet's figures.
Whalio spot data shows STRK trading at $0.02899 with a 1-hour buy ratio of 46.6% and a 4-hour buy ratio of 48.0%. These short-term readings are higher than the 24-hour buy ratio of 39.7%, suggesting buying pressure is building in the immediate term. The 24-hour volume delta is -$398,439, indicating that sell volume has exceeded buy volume over the full day. This negative delta contrasts with the higher short-term buy ratios, showing that while recent flow is more balanced, the overall daily trend remains net selling. The CVD at 24-hour close is -$394,460, confirming the net outflow of capital. Net buying occurred in only 7 of the 24 hours, with spot volume totaling $1,958,569 across 38,793 trades.
The latest daily buy ratio of 45.1% sits at the 9th percentile of the last 324 days, against a median of 48.6% - among the weakest buying days it has had.
Was that an ordinary day?
The same Binance spot measurements for STRK, averaged over the days leading up to the story.
Over the preceding week, the average buy ratio was 49.1%, compared to the latest day's 39.7%, a difference of 9.4 percentage points. This indicates that the current day is less bullish than the weekly average, with buying interest weakening relative to recent norms. Volume on this day was 1.06x the weekly average, showing slightly higher activity despite the lower buy ratio. The 8-day volume delta total was -$620,664, with net buying occurring on only 3 of the 7 days. This pattern of net selling over the week aligns with the negative 24-hour delta, highlighting a consistent bearish bias in the order flow.