i have read many posts about recommending the dow eminis. i hear that it has a low margin/volitility ratio, great point spread of 1 tick and $5 low value per tick. it all seems great on paper yet it terribly lags all of the other e-mini products. as of march 28th the open interest on the june emini dow is only 68,500 contracts and volume is 111606. while the s&p emini has 1735358 open interest and mindboggling 911001 in volume. the nasdaq emini 331420 open interest with 193519. even the lowly russel 412873 open interest with great volume at 140752. the mini dow went public in 2003 much like the other mini's yet it lags terribly even the less traded nasdaq and russel eminis. i have traded the dow emini and have experienced slippage. this is indicitive of its thin open interest and volume. my question is why hasnt this product caught on? this is after all a product of the dow, the most popular and oldest index in the history of the stock market yet even the least traded emini index has a whopping 5 fold more volume and open interest?