Sin stocks refer to companies that sell unhealthy or otherwise unfavorable products and services such as alcohol, gambling and tobacco.
 
While I cannot police people's actions, I can steer you away from stocks that do not look attractive on the charts -- even if they pay healthy dividends, as these four sin stocks do.
 
Altria
 
 
 
 
In this daily chart of Altria ( MO - Get Report) , above, we can see a great-looking chart that goes from the lower left to the upper right. Prices are above the rising 50-day and 200-day moving averages. The on-balance-volume, or OBV, line is pointed up.
 
It all looks and sounds good, but there is a bearish divergence between the higher highs in May and June and lower momentum readings. This relatively small divergence is not likely to derail a long-term uptrend. Let's check our weekly chart, below.
 
 
 
In this longer-term five-year weekly chart of Altria, above, I want to zero in on the price action from early 2014. Do you see the rally from $35 to $57 for $22? Do you see the rally from $46 to $66 for $20? This is called a measured move pattern. Measured moves (sometimes called an A/B move) are large patterns where the first leg is matched with a similar leg after a correction. Measured moves are pretty rare formations, and by the time you figure out that you are looking at a measured move, it is probably 80% over.
 
I have seen a few of these rare patterns in the past 40 years, and I think Altria fits the bill. Yes, prices are above the rising 40-week moving average and the OBV line is pointed up so you don't worry about a decline, but Altria also has a bearish divergence between the higher prices and a flat momentum study. Have you raised your sell-stop recently?
 

 
Anheuser-Busch InBev
 
 
 
In this daily chart of Anheuser-Busch InBev  ( BUD) , above, the $130 level has "capped" gains for the stock for months. Prices are above the 200-day moving average line but below the 50-day. The OBV line is pointed down.
 
 
 
Prices are above the 40-week moving average line in this weekly chart of BUD, above. The OBV line is pointed up. That looks good, but there is a bearish divergence between the price action and momentum since late 2015. This bearish divergence could mean that BUD could correct down in the $110-to-$100 area again.

 
Diageo
 
  
In this daily chart of  Diageo  ( DEO) , above, we can see that prices have been making lower highs for the past 12 months. We have a peak in June/July and a lower peak in November/December and still lower this April. Prices continue to hold the $100 level, but that is likely to give way soon.
 
 
 
In this longer-term chart of DEO, above, we can see that prices peaked in late 2013. Prices are below the declining 40-week moving average line, and the OBV line is weakening. With no bullish divergences with the momentum study, I would anticipate that DEO trades down to $90 and maybe lower in the weeks ahead.

 
Las Vegas Sands
 
 
 
In this daily chart of Las Vegas Sands ( LVS - Get Report) , above, we can see that LVS has been crossing above and below the 50-day and 200-day moving averages. The slopes of these two averages are pointed down, as is the OBV line from the March highs.
 
 
 
In this weekly chart of LVS, above, we can see that prices made an early 2014 peak, and the recent price action looks like a rally in a downtrend. The OBV line has been pointed down since early 2014 and tells us that sellers have been more aggressive for some time now. Prices are trading around the 40-week moving average line. LVS looks like it should/will retest the $40 level and maybe lower in the third quarter.

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