Karla Barker 
Arbitrum’s token started September with a sharp move. ARB was trading near $0.1116, up 31.6% over the day. Trading volume hit $381.13 million. The 24-hour range stretched from $0.08477 to $0.1193.
Robinhood Chain Changes the Picture
Much of the attention is tied to the Robinhood Chain, which runs on Arbitrum Orbit. It has been live since July 8. The chain generated more than $1.92 million in fees in a single day, a big jump from its usual daily revenue of about $100,000. That shift matters because 10% of net revenue flows back to the Arbitrum treasury. Yesterday alone, that meant roughly $190,000 landed directly in Arbitrum’s treasury.
Tokenized stocks on Arbitrum One also reached a new all-time high of $200 million in market cap. L2 projects had been widely written off, but Robinhood running its own Arbitrum chain has forced people to reconsider what this infrastructure can deliver when a serious platform commits to it.
Technical Signals and the Risk of Overheating
ARB is still facing real resistance. The current price is sitting at monthly resistance. Without a daily close above it, the move could be treated as an artificial pump rather than a structural breakout. The four-hour chart shows upside momentum though. A break above $0.1141 could keep things moving. If buyers push enough, a golden cross might form and send the price toward $0.1180.
If buyer enthusiasm fades, sellers could pull ARB down to support at $0.1101. A deeper move might trigger a death cross, which would open the door to a drop back toward previous lows.
The MACD line sits above the signal line, and both are above zero. That usually points to strong upward momentum. But the daily RSI is at 81.14, which means the asset is deep in overbought territory. Readings like that often follow a vertical surge. Buyers are clearly in control, but the RSI reads more like a warning than a buy signal.
What Could Happen Next
So where does the rally go from here? Much depends on the daily close. If ARB can hold above resistance, the broader trend stays intact. If not, the recent pump could fade as quickly as it started. The next session or two should give a clearer clue about whether this is a genuine breakout or just another short squeeze.