People watch stocks for different reasons -- they're waiting for a dip in price, watching for a specific catalyst, gathering all the news and information that might affect stocks they already own, or considering a sell. Regardless of their motivation, we can better understand market sentiment by seeing who's watching what. With the Fool's free My Watchlist service, we have tens of thousands of people telling us the businesses that have, for whatever reason, piqued their interest.

The most-watched auto components stock is ...
Looking at the aggregate data, we see that BorgWarner (NYSE: BWA) is above the rest in terms of watch interest, the percentage of people keeping an eye on Leisure stocks in general who are specifically watching each company. And for good reason. As CAPS All-Star LazyEyedFreak wrote in January:

Turbo diesels slowly becoming more common in US small/midsize vehicles coupled with smaller displacement turbocharged gas engine development (to meet future EPA MPG mandates) = more turbo sales.

Here are the rest of the top 15 most-watched companies in the industry with their watch interest along with the stocks' CAPS rating to show the sentiment of our investing community.

  Company Market Cap (millions) CAPS Rating Watch Interest

1

BorgWarner

$8,691

 ****

19.3%

2

Johnson Controls

$28,015

 *****

15.5%

3

Exide Technologies

$833

 ****

6.5%

4

American Axle & Manufacturing

$877

 *

4.1%

5

China Automotive Systems (Nasdaq: CAAS)

$227

 **

3.6%

6

Wonder Auto Technology (Nasdaq: WATG)

$173

 ****

3.6%

7

Fuel Systems Solutions (Nasdaq: FSYS)

$584

 ***

3.5%

8

Autoliv

$6,645

 ****

3.5%

9

SORL Auto Parts

$109

 ****

3.4%

10

Goodyear Tire & Rubber (NYSE: GT)

$3,711

 **

3.3%

11

TRW Automotive Holdings

$6,775

 **

3.2%

12

Gentex

$4,246

 ****

2.9%

13

Spartan Motors (Nasdaq: SPAR)

$240

 ****

2.6%

14

Drew Industries

$519

 ***

2.4%

15

Ballard Power Systems (NYSE: BLDP)

$197

 **

2.1%

Source: Motley Fool, Motley Fool CAPS.

Whether you're keeping an eye on the industry stalwarts like Johnson Controls, or watching an up-and-comer like Ballard Power Systems, it pays to watch. We can help you keep tabs on your companies with My Watchlist, our free, personalized stock tracking service. Click here to start now.