Qualifying for any type of gifted or enrichment program would depend on what your school district has to offer and what the qualification criteria are.
In many schools, including ours, testing/qualification is through more generalized assessment tests than something like a single subject in the NWEA.
Your score puts you around the 96th-97th percentile on that one area of the test. Programs qualifications are often in the 95-97 range, so it's certainly worth investigating and having discussions regarding what might be available.
Be aware that many other data points (did you also take the Math portion and score similarly? 266 would be about the same, percentile wise) and other factors go into any evaluation.
But I certainly encourage you to at least discuss with parents, teacher, school administrator to understand what might be available.
