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![MattyTom01 Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::1635566602744676353.png) Mathias at Arbitrum (💙,🧡) [@MattyTom01](/creator/twitter/MattyTom01) on x 1182 followers
Created: 2025-07-21 14:00:28 UTC

Saw someone short $XX MILLION on the S&P XXX in one click…

At 50x leverage.

Instant fill. Minimal slippage. Cleared in USDC.

Yeah, I had to double-take too. 

That didn’t happen on some Wall Street desk

It happened onchain on @ostiumlabs 👇🧵

#Arbitrum

![](https://pbs.twimg.com/media/GwYvChwX0AAUUf6.jpg)

XX engagements

![Engagements Line Chart](https://lunarcrush.com/gi/w:600/p:tweet::1947295617572536522/c:line.svg)

**Related Topics**
[onchain](/topic/onchain)
[happened](/topic/happened)
[wall street](/topic/wall-street)
[slippage](/topic/slippage)
[usdc](/topic/usdc)
[coins made in usa](/topic/coins-made-in-usa)
[coins bsc](/topic/coins-bsc)
[coins stablecoin](/topic/coins-stablecoin)

[Post Link](https://x.com/MattyTom01/status/1947295617572536522)