4th Edition page 262 (AIM HI chapter) : where SAFE is nothing more than 10% of your Stock Value
Robert also noted on that same page : For a while I experimented with a Minimum Market Order of 5% of my Stock Value--an amount, in other words, half of the Safe figure. My AIM machine, faced with a record bull market, went into overdrive, spitting out cash like a punch-drunk ATM machine......
... The cure took another year to develop and it's simply this: Make your minimum purchase or sale 10% of your Stock Value