文档介绍：ETF Trading Tactics, Part II:
How To Use RSI To
Trade Index Funds
By
Loren Fleckenstein
ETF Trading Tactics, Part 2: How To Use RSI To Trade Index
Funds
By Loren Fleckenstein
Index shares, exchange-traded funds that track stock indexes, form a
relatively new class of security. But as fund traders, we can borrow time-tested
tactics used by futures pros who have traded off the same indexes for years.
A case in point is the Relative Strength Index. Futures traders have used the
RSI to detect overbought and oversold levels in the S&P 500 ($) and
Nasdaq 100 ($) stock indexes as well as a wide variety of other markets.
In this lesson, I'll teach you how to use the RSI to time buys of the Standard &
Poor's Depository Receipts (SPY) and the Nasdaq 100 Tracking Stock (QQQ).
These exchange-traded funds, commonly called Spiders and Cubes, track the
S&P 500 and Nasdaq 100, respectively.
About the RSI
The RSI is a momentum oscillator developed by J. Welles Wilder Jr. and first
publicized in 1978. It measures day-to-day up and down closes in an index or
security over a given period.
The oscillator's readings range from 0 to 100. Extreme low readings indicate an
oversold condition. Extreme high readings flag an overbought condition. The
system discussed in this tutorial uses RSI only as an entry signal. So we will
concern ourselves