Increase the fees on trades into stock synths to 30 bp.
As per sip-56 each synth can now have its own fee levels. This SCCP suggest to raise the fees on stocks synths (sFTSE and sNIKKEI) to 30 bp.
Fees were configured recently in sccp-24 . However, analysis of recent on-chain data showed that front-running opportunities were more accessible for stock synths due to the low trading fees levied. Increasing these back to 30 bp should shrink that window significantly and bolster the protection until sip-52 is implemented.
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