blue chip

noun3

1. •
   A high-value poker chip.
2. •
   A stock or other investment that has a high price because of its perceived reliability.

   • Every so often, the practice reappears in the trading of “penny stocks”—cheap, rarely traded, shares. Years ago when volume was thinner, it was said to be common in blue chips too. — 2000
3. •
   Synonym of blue-chipper.