$Microsoft(MSFT.US)I bought some shares at 398 and opened a position for January options. It's rare for Microsoft to drop below 400. There's another buying point below, waiting to add more.$Amazon(AMZN.US)I opened the options position too early. I bought a June option before bed last night. I waited too long and got impatient. Today, I felt numb even before the market opened. A strategy order was triggered at 197.7 to buy some shares. Below 200, Amazon offers good value. As planned, I set a strategy order near 181 to wait for buying. No rush, take it slow. As the saying goes, every dip in these top U.S. stocks is an opportunity. The wealth concentration effect means talent and resources will inevitably flow to the top players, no matter where you are.