Q 10.41. A day trader has $10 million in assets. She buys and sells 30% of her portfolio every day. As- sume that this day trader is very good and incurs single round-trip transaction costs of only 10 cents on a $30 stock. Roughly, by how much does this day trader's strategy have to beat the benchmark in order to make this a profitable activity? Assume that the trader could earn $200,000 in an equivalent alterna- tive employment and that there are 252 trading days per year.