The latest data point for ACHR's EPS Surprise % in Q4'25 shows a negative surprise of -16.7%, indicating that the company's earnings per share fell short of analyst expectations by that margin. This follows a volatile pattern in recent quarters, with Q2'25 marking a positive outlier at +42.1% surprise. Over the period from Q4'22 to Q4'25, EPS Surprise % has exhibited high volatility, fluctuating between a low of -38.1% in Q1'25 and a high of +93.8% in Q2'23, with no clear overall upward or downward trend but frequent swings from positive to negative territory. In contrast, EPS Growth (YoY) from Q1'23 to Q4'25 displays a more balanced oscillation, ranging from -143.3% in Q2'23 to +56.2% in Q2'24, with recent quarters showing moderate positive growth in Q1'25 (+52.8%) and Q4'25 (+40.0%), suggesting improving year-over-year performance despite the surprise shortfalls. Key inflection points include sharp declines in Q3'24 (-52.6% growth) and recoveries in subsequent periods, highlighting ACHR's inconsistent earnings trajectory amid broader market pressures.