The cryptocurrency market witnessed sharp declines in two notable altcoins on August 22, 2026, as Optimism (OP) and Harmony (ONE) both plunged over 10% within a single hour, reflecting heightened volatility and bearish sentiment across the broader digital asset space.
Optimism (OP) dropped 11.01% in the last hour, trading at $0.1059. Earlier in the day, the Layer 2 token had reached a peak of $0.1233 before falling from $0.119 to its current level, marking a sharp reversal. Despite this hourly loss, OP still maintained a 24-hour gain of 8.73%, with a daily range between $0.0979 and $0.1233. Trading volume over the past 24 hours surged to $8,376,785.72, indicating active trader engagement amid the sell-off. Analysts attributed the decline to broader macroeconomic pressures, including concerns over rising interest rates and a strengthening dollar, as well as ongoing regulatory uncertainties that have weighed on investor sentiment. Key technical levels are now in focus: support is seen near $0.0979, while resistance lies at $0.1233. A break below support could signal further downside, while a rebound above resistance might suggest a recovery.
Similarly, Harmony (ONE) experienced a 10.82% drop in the past hour, with its price falling from $0.000832 to $0.000742. This move pushed ONE to its intraday low, erasing earlier gains and leaving the token with a 24-hour decline of 3.51%. The day’s high was $0.000874, and the trading volume reached $1,870,381.73. The sudden decline reflects a broader reassessment of risk among traders, with mixed signals across major assets leading to panic selling in smaller-cap altcoins. For ONE, the $0.00074 support level is critical; a breakdown could accelerate losses, while resistance near $0.00080 may cap any near-term recovery.
Both OP and ONE are altcoins that have been caught in a wave of selling pressure, underscoring the fragility of sentiment in the current market environment. Traders are closely monitoring these coins for signs of stabilization or further declines, as broader macroeconomic factors continue to drive volatility across the cryptocurrency landscape.
