"Flight to safety" investments into U.S. Treasuries and gold continue to outperform stocks, but rising oil prices have been narrowing performance measures. Let's take a look at the weekly charts for the exchange-traded funds that represents bonds, gold, oil and the dollar.

U.S. Treasury 30-year bond yields rose to 2.757% last week, up from 2.380% on Feb. 11 and shy of the record low yield of 2.221% set on Jan. 20, 2015. Even so, the yield is down 8.7% year to date. The S&P 500 I:GSPC is down 1.1% year to date.

The "flight to safety" into bonds can be traded like a stock by investing in the 20+ Year Treasury Bond ETF (TLT) - Get Report , which is a basket of U.S. Treasury bonds with maturities of 20 years to 30 years.

The SPDR Barclays High Yield Bond ETF (JNK) - Get Report and has been rallying with the stock market since Feb. 11.

Comex gold traded to a new 52-week high of $1,287.8 on Friday, vs. this week's key technical level of $1,321.7. The upside is to $1,639.9 at some point in 2016. The ETF to trade as a proxy for gold is the SPDR Gold Shares ETF (GLD) - Get Report , which is backed by gold bullion.

Nymex crude oil bottomed at $26.05 on Feb. 11. It is now up 4.1% year to date at Friday's close of $38.50, up 48% from the low. Even with this near-term strength the upside for all of 2016 should be limited to $44.07 a barrel. One of the ways to trade oil like a stock is using the iShares GSCI Commodity-Index Trust Fund (GSG) - Get Report , which is 70% to 75% weighed to energy and crude oil.

The euro vs. the dollar has been trading back and forth around its 200-day simple moving average since Aug. 21, with this average now at 1.1043. A key annual level of 1.1052 remains a magnet for all of 2016. The best ETF that tracks the ups and downs of the dollar is the Deutsche Bank USD Index (UUP) - Get Report , which is a basket of currencies including the euro, Japanese yen, British pound, Canadian dollar, Swedish krona and Swiss franc.

Here's the weekly chart for the TLT bond ETF.


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The bond ETF closed at $127.36 on Friday, up 5.6% year to date vs. a decline of 1.1% for the S&P 500, as the outperformance of bonds continues to narrow.

The weekly chart for the ETF is negative, with last Friday's close below its key weekly moving average of $127.89, which indicates risk to the 200-week simple moving average of $118.42. The weekly momentum reading ended last week declining to 69.04, down from 74.30 on March 4.

Investors looking to buy the bond ETF should do so on a decline to the 200-week simple moving average of $118.42. Investors looking to reduce holdings should continue to do so on strength to $131.78 and $132.45, which are key levels on technical charts until the end March and the end of 2016, respectively.

Here's the weekly chart for the JNK junk bond ETF.


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The junk bond ETF closed at $34.33 on Friday, up 1.2% year to date and up 9.8% from its 2016 low of $31.27, set on Feb. 11.

The weekly chart for the junk bond ETF has been positive from the close of $33.07 on Feb. 26. The ETF is above its key weekly moving average of $33.40, with its 200-week simple moving average of $39.33. The weekly momentum reading ended last week by rising to 48.14, up from 33.28 on March 4.

Investors looking to buy the junk bond ETF should do so on a decline to $32.36 and $31.89, which are key levels on technical charts for this week, and until the end of March, respectively. Investors looking to reduce holdings should consider doing so on strength to $35.66 and $38.62, which are key levels on technical charts until the end of March and June, respectively.

Here's the weekly chart for the GLD gold ETF.


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The gold ETF closed at $119.41 on Friday, up 17.7% year to date after setting its 52-week high of $122.37 on March 4.

The weekly chart for the gold ETF is positive but overbought, with the ETF above its key weekly moving average of $114;72, which targets its 200-week simple moving average at $128.81. The weekly momentum reading rose to 82.37 last week, up from 80.29 on March 4, becoming more overbought.

Investors looking to buy the gold ETF should do so on weakness to a key level on technical charts of $109.94, which is in play until the end of March. Investors looking to reduce holdings should do so on strength to $121.54, which is a key level on technical charts until the end on this week. The upside potential for all of 2016 is $157.36.

Here's the weekly chart for the GSG commodity index ETF.


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The commodities ETF closed at $14.16 on Friday, down just 0.5% year to date. It is 17.7% above its Jan. 20 low of $12.03. This ETF remains in bear market territory, 36.6% below its 52-week high of $22.34, set on May 6.

The weekly chart remains positive, with the ETF above its key weekly moving average of $13.54, and well below its 200-week simple moving average of $27.40. Its weekly momentum reading rose to 38.95 last week, up from 27.23 on March 4.

Investors looking to buy the commodities ETF should do so on weakness to $13.19, which is a key level on technical charts until the end of March. Investors looking to reduce holdings should do so on strength to $18.42, which is a key level on technical charts in play until the end of June.

Here's the weekly chart for the UUP dollar index ETF.


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The dollar ETF closed at $24.95 on Friday, down 2.7% year to date.

The weekly chart is neutral, with the ETF below its key weekly moving average of $25.28, and well above its 200-week simple moving average of $23.11. Its weekly momentum reading rose to 39.93 last week, up from 39.34 on March 4.

Investors looking to buy the dollar ETF should do so on weakness to $24.18 and $23.31, which are key levels on technical charts until the end of June and the end of 2016, respectively. Investors looking to reduce holdings should do so on strength to $25.95 and $26.68, which are key levels on technical charts until the end of March.

This article is commentary by an independent contributor. At the time of publication, the author held no positions in the stocks mentioned.