The APY for FRX/ETH vault on Beefy and Convex can vary due to several factors. On Beefy, the APY is currently 8.7%, while on Convex it is around 9%. The difference in APY could be due to the amount of liquidity available on each platform, as well as other market conditions. The APY on Beefy could also be lower due to the fees associated with the platform, while the APY on Convex could be higher due to a lack of fees. Additionally, the APY on each platform can fluctuate depending on the amount of liquidity and market activity. Therefore, it is important to keep an eye on the APY of both platforms to ensure you are getting the best return on your investment.