ArbsReviews of arbs.xyz

I went in genuinely interested in prediction market arbitrage, so before subscribing I did my own homework. I pulled live market data directly from Kalshi and Polymarket and measured what cross-venue arbitrage actually returns in practice. My conclusion is that Arbs.xyz describes a real thing but showcases results that the strategy cannot produce. What they get right: the underlying idea is legitimate. Prediction markets do disagree on price across venues, and if you buy both sides for a combined cost under a dollar, you can lock a small guaranteed spread regardless of the outcome. To their credit, their own FAQ even admits the everyday gaps are only about 3 to 6 percent and that capital gets tied up until the market resolves. That part is honest. The problem is the numbers on the homepage. When I actually scanned both venues in full, the genuine, executable arbs ran roughly half a percent to a few percent, and most were under two percent after fees. Anything showing a double digit "gap" turned out to be stale pricing on one side, not a real edge you could execute. On top of that, the spreads that do exist are mostly on long dated markets that lock your money up for months. Short term arbs that would let you recycle capital quickly were almost nonexistent when I looked. The featured testimonial claims someone turned a small starting balance into over sixteen thousand dollars in about ten weeks, with a best day of more than two thousand dollars. That is the part that does not add up. Real risk free arbitrage does not have big days. Your profit locks the moment you place both sides and then simply sits until the event settles weeks or months later. It never spikes. A two thousand dollar day on a small account is the signature of a directional bet that happened to win, which is gambling, not the can't lose strategy being marketed. Running the math, those results would require returns in the hundreds of percent per month, while the actual measured rate for genuine arbitrage on these venues is low single digits per year. There is also a scale problem they don't mention. The best looking spreads have almost no depth. In my own measurements a roughly five percent opportunity had only a few hundred dollars of real liquidity behind it, and another had about five dollars. So you cannot put meaningful money into the good gaps even when they appear, and betting bigger does not raise your return rate, it just fills up the order book and shrinks the spread. Finally, the price. It is roughly two thousand dollars a year, annual only and non refundable. For a strategy that realistically returns low single digit percent per year, the subscription alone would exceed a year of realistic profit on the small account size they themselves suggest you can start with. After just looking strictly at what is available on both sites. The math does not math. There might be one thing that may be overlooked, but looking at the entire sites on both sides, doing the math, spread analysis and depth analysis. It just does not add up. Bottom line: this is a real tool for a real but modest phenomenon, wrapped in marketing that shows returns the phenomenon cannot deliver. If you treat it as a way to earn a small, relatively safe single digit annual return, with money locked up for months and a real chance of ending up holding one unhedged side, that is honest and reasonable. If you sign up expecting the results on their homepage, the data says you will be disappointed. I cannot recommend it at this price for those expectations.