The meaning of the Acronym SPDR is...

SPDR is

• System Peril Distributed Reflex

More Meanings For SPDR:

• Secure Protected Development Repository
• Standard Poors Depositary Receipts
• System Peril Distributed Reflex
• Standard & Poor's Depository Receipts
• Standard & Poor's Depository Receipts
• Software Preliminary Design Review
• Seattle Purebred Dog Rescue
• Single Player Demo Release

SPDR is also in:

• General
• NASA
• Non-Profit Organizations
• Physiology
• Security
• Sports
• Stock Exchange
• Unfiled