Recent trading activity has highlighted significant options activity across various stocks. Archer Aviation Inc. ($ACHR) has seen a notable rise, with a reported increase of 14% and reaching a 52-week high, following heavy call buying activity. Specifically, 25,000 January $8 calls were purchased at prices ranging from $1.05 to $1.10. The put/call ratio for $ACHR stands at 18,000 to 92,000, indicating a bullish sentiment among traders. Other stocks also exhibited notable put/call ratios, including Walmart Inc. ($WMT) at 52,000 to 105,000, and $LEU at 401 to 1,523. The industrial sector is also showing activity, with the $XLI put/call ratio reported at 155,000 to 7,132. Additionally, $COF has seen repeat buying in March calls, with a put/call ratio of 2,140 to 8,289. Overall, the options market reflects a mix of bullish and bearish sentiments across these stocks.